National Weather Service United States Department of Commerce

Smoke Management For Large Burn Projects or HAZMET emergencies:***Hybrid Single Particle Lagrangian Integrated Trajectory Model(HYSPLIT) Trajectories Request Function to be provided viaWeather Forecast Office NWS Spot Forecast Request Webpages Effective September 19 2011*** 

To request smoke/particle HYSPLIT trajectories from WFO NWS Spot forecast request webpages, the authorized user must enter the phrase "hysplit to email@ domain.gov" (email@ domain.gov = your email address) in the remarks section of the spot forecast request form. The HYSPLIT trajectory raw data, as well as ".gif" (image) and ".kmz" (geocoded) files, will be sent to the specified email address. For more information concerning HYSPLIT: https://www.arl.noaa.gov/HYSPLIT_info.php